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Webster 1913 Edition
Athanor
Ath′a-nor
,Noun.
[F., fr. Ar.
at-tannūr
, fr. Heb. tannūr
an oven or furnace.] A digesting furnace, formerly used by alchemists. It was so constructed as to maintain uniform and durable heat.
Chambers.
Webster 1828 Edition
Athanor
ATH'ANOR
,Noun.
A digesting furnace, formerly used in chimical operations, so constructed as to maintain a uniform and durable heat. It is a furnace, with a lateral tower close on all sides, which is to be filled with fuel. As the fuel below is consumed, that in the tower falls down to supply its place.